Merge pull request #2315 from alalek:issue_contrib_2279

    {

        for(int k = 0; k < nbrTextBoxes; k++)

        {

            float x_min = buffer[k*nCol + 3]*inputShape.width;

            float y_min = buffer[k*nCol + 4]*inputShape.height;

            float confidence_ = buffer[k*nCol + 2];

            if (confidence_ <= FLT_EPSILON) continue;

            float x_max = buffer[k*nCol + 5]*inputShape.width;

            float y_max = buffer[k*nCol + 6]*inputShape.height;

            float x_min_f = buffer[k*nCol + 3]*inputShape.width;

            float y_min_f = buffer[k*nCol + 4]*inputShape.height;

            CV_CheckLT(x_min, x_max, "");

            CV_CheckLT(y_min, y_max, "");

            float x_max_f = buffer[k*nCol + 5]*inputShape.width;

            float y_max_f = buffer[k*nCol + 6]*inputShape.height;

            x_min = std::max(0.f, x_min);

            y_min = std::max(0.f, y_min);

            int x_min = cvRound(std::max(0.f, x_min_f));

            int y_min = cvRound(std::max(0.f, y_min_f));

            x_max = std::min(inputShape.width - 1.f,  x_max);

            y_max = std::min(inputShape.height - 1.f,  y_max);

            int x_max = std::min(inputShape.width - 1,  cvRound(x_max_f));

            int y_max = std::min(inputShape.height - 1,  cvRound(y_max_f));

            int wd = cvRound(x_max - x_min);

            int ht = cvRound(y_max - y_min);

            if (x_min >= x_max) continue;

            if (y_min >= y_max) continue;

            Bbox.push_back(Rect(cvRound(x_min), cvRound(y_min), wd, ht));

            confidence.push_back(buffer[k*nCol + 2]);

            int wd = x_max - x_min;

            int ht = y_max - y_min;

            Bbox.push_back(Rect(x_min, y_min, wd, ht));

            confidence.push_back(confidence_);

        }

    }